Standard Lemma guide

demi-

prefix · 3 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

prefix

Meaning 1

partial

Definition source: English Wiktionary via Wiktextract

Usage: morpheme

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: semi-

Antonyms: holo-

2

prefix

Meaning 2

half

Definition source: English Wiktionary via Wiktextract

Usage: morpheme

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: half-, hemi-, semi-

Antonyms: holo-

3

prefix

Meaning 3

Only the upper or front half of

Definition source: English Wiktionary via Wiktextract

Usage: morpheme

Topics: government, heraldry, hobbies, lifestyle, monarchy, nobility, politics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Etymology tree Proto-Indo-European *dwóh1 Proto-Indo-European *d(w)is- Proto-Italic *dis- Latin dis- Proto-Indo-European *me Proto-Indo-European *dheh1-? Proto-Indo-European *-dhe Proto-Indo-European *médhi Proto-Indo-European *-os Proto-Indo-European *médhyos Proto-Italic *meðios Latin medius Latin dīmidius Vulgar Latin *dimediusder. Anglo-Norman demibor. Middle English demi English demi- From Middle English demi (“half, half-sized, partial”), from Anglo-Norman demi (“half”), from Vulgar Latin *dimedius, from Latin dīmidius, from dis- (“apart; in two”) + medius (“middle”).

Across languages

Translations

24 source translations are retained for this English entry.

  • Chinese: 半 (bàn) — half — see also half-, semi-, hemi-
  • Finnish: puoli- — half — see also half-, semi-, hemi-
  • French: demi- — half — see also half-, semi-, hemi-
  • Georgian: ნახევარ- (naxevar-) — half — see also half-, semi-, hemi-
  • Georgian: ნახევრად- (naxevrad-) — half — see also half-, semi-, hemi-
  • Greek: ημι- (imi-) — half — see also half-, semi-, hemi-
  • Ido: mi- — half — see also half-, semi-, hemi-
  • Italian: semi- — half — see also half-, semi-, hemi-
  • Italian: emi- — half — see also half-, semi-, hemi-
  • Japanese: 半 (han) — half — see also half-, semi-, hemi-
  • Korean: 반 (ban) — half — see also half-, semi-, hemi-
  • Latin: semi- — half — see also half-, semi-, hemi-
  • Norman: d'mié — half — see also half-, semi-, hemi-
  • Polish: pół- — half — see also half-, semi-, hemi-
  • Romanian: semi- — half — see also half-, semi-, hemi-
  • Romanian: demi- — half — see also half-, semi-, hemi-
  • Romanian: emi- — half — see also half-, semi-, hemi-
  • Russian: пол- (pol-) — half — see also half-, semi-, hemi-
  • Russian: полу- (polu-) — half — see also half-, semi-, hemi-
  • Sicilian: emi- — half — see also half-, semi-, hemi-
  • Sicilian: simi- — half — see also half-, semi-, hemi-
  • Spanish: semi- — half — see also half-, semi-, hemi-
  • Tagalog: mala- — half — see also half-, semi-, hemi-
  • Vietnamese: bán — half — see also half-, semi-, hemi-